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LTC3857EUH#TRPBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR BUCK 32QFN. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for LTC3857EUH#TRPBF
- Description：IC REG CTRLR BUCK 32QFN
- Series：PolyPhase®
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：2
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：4V ~ 38V
- Frequency - Switching：105kHz ~ 835kHz, 350kHz ~ 535kHz
- Duty Cycle (Max)：99.40%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Grade：-
- Qualification：-
DC DC Switching Controllers datasheet and documents for LTC3857EUH#TRPBF
DC DC Switching Controllers Overview
The LTC3857EUH#TRPBF is a dual-phase synchronous step-down DC/DC controller from Analog Devices. It operates with an input voltage range of 4V to 38V and supports switching frequencies between 105kHz and 835kHz for the first phase, and 350kHz to 535kHz for the second phase. The device features a maximum duty cycle of 99% and utilizes a 28-SSOP package. It includes control characteristics such as enable, frequency control, power good indication, soft start, and tracking capabilities.
DC DC Switching Controllers Feature Summary
- Dual-phase architecture designed for high current delivery
- Synchronous rectification for improved efficiency
- Integrated tracking and soft-start functionality
DC DC Switching Controllers Applications
- Distributed power systems
- Battery operated digital devices
- Automotive always-on systems
DC DC Switching Controllers Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component meets RoHS compliance requirements for your assembly process. Check for any regional shipping restrictions or limited availability status before finalizing procurement plans.
DC DC Switching Controllers Selection Notes
Select this controller for applications requiring two independent output phases from a single IC. It is suitable where input voltages range up to 38V. Consider the 28-SSOP package size for board layout constraints. Verify that the required switching frequency ranges align with the specified operational parameters.
DC DC Switching Controllers Part Context
This component belongs to the PolyPhase series of power management integrated circuits. It functions as a switching regulator controller rather than a complete converter, requiring external MOSFETs. The device is part of Analog Devices' portfolio for efficient power conversion in compact form factors.
DC DC Switching Controllers Replacement Considerations
The LTC3857IGN-1#PBF is a related variant within the same family. Verify pin compatibility and package differences between SSOP and QFN options if substituting.
DC DC Switching Controllers FAQ
What is the maximum input voltage supported by the LTC3857?
The device supports an input voltage range up to 38V.
Does the LTC3857 support clock synchronization?
No, the datasheet specifications indicate that clock synchronization is not available for this model.
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